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https://issues.apache.org/jira/browse/KAFKA-15836?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismael Juma updated KAFKA-15836:
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Fix Version/s: 3.6.1
> KafkaConsumer subscribes to multiple topics does not respect max.poll.records
> -----------------------------------------------------------------------------
>
> Key: KAFKA-15836
> URL: https://issues.apache.org/jira/browse/KAFKA-15836
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 3.6.0
> Reporter: Philip Nee
> Assignee: Kirk True
> Priority: Blocker
> Labels: consumer
> Fix For: 3.6.1
>
>
> We discovered that when KafkaConsumer subscribes to multiple topics with
> max.poll.record configured. The max.poll.record is not properly respected
> for all poll() invocation.
>
> I was able to reproduce it with the AK example, here is how I ran my tests:
> [https://github.com/apache/kafka/pull/14772]
>
> 1. start zookeeper and kafka server (or kraft mode should be fine too)
> 2. Run: examples/bin/java-producer-consumer-demo.sh 10000000
> 3. Polled records > 400 will be printed to stdout
>
> Here is what the program does:
> The produce produces a large number of records to multiple topics. We
> configure the consumer using a max.poll.record = 400, and subscribed to
> multiple topics. The consumer poll, and the returned records can sometimes
> be larger than 400.
>
> This is an issue in AK 3.6 but 3.5 was fine.
>
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